what is global catalog? in simple word but all about global catalog information. and how its work
Five answers:
2009-08-10 09:41:56 UTC
The global catalog is a distributed data repository that contains a searchable, partial representation of every object in every domain in a multidomain Active Directory forest. The global catalog is stored on domain controllers that have been designated as global catalog servers and is distributed through multimaster replication. Searches that are directed to the global catalog are faster because they do not involve referrals to different domain controllers.
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roarrrr
2009-08-10 08:17:32 UTC
The global catalog is a distributed data repository that is stored in global catalog servers and issued via multimaster replication. It basically is composed of a representation (partial) of every object in the multidomain Active Directory forest that can also be searched. The global catalog is used because searches can be made faster because they don't need to go through the hassle of involving referrals to different domain controllers.
In addition, the global catalog allows finding an object that you wish without needing to know the object's domain name. This is possible because not only does it hold a full, writable domain directory replica, but it also has a partial, read-only replica of all the domain directory partitions in the forest. Therefore, by being composed of only the most used attributes during searching, all objects in every domain in any small or big forest can be found and represented in the database of one global catalog server.
To maintain the ability to conduct a full, fast, and effective search, the global catalog is constantly updated by the Active Directory replication system. These attributes that are replicated to the catalog are known as partial attribute set (PAS). The PAS, in a Windows 2000 Server environment will cause a full synchronization of the global catalog to occur even if it may be a minor change. However, this issue was improved upon in the Windows 2003 Server environment with a change in the PAS by only updating the attributes that change.
rott
2016-11-10 09:06:33 UTC
What Is Global Catalog
2009-08-10 08:29:15 UTC
The global catalog is a distributed data repository that is stored in global catalog servers and issued via multimaster replication. It basically is composed of a representation (partial) of every object in the multidomain Active Directory forest that can also be searched. The global catalog is used because searches can be made faster because they don't need to go through the hassle of involving referrals to different domain controllers.